Pro tip: When you wash the cover, let it air dry rather than tossing it in the dryer to keep those magical microfibers fluffy and functional.
From the manufacturer:
When you need extra reach, the Microfiber Extendable Duster extends from a compact 24-in to 52-in. The Duster head rotates 270° and locks at multiple angles. Lock in a vertical position to clean ceiling vents and light fixtures or at a 90° angle to dust the tops of bookshelves and cabinets.